I would like some advise on sealing the surface of a model after applying waterslide transfers, the type produced via a home computer and ink-jet printer. The model is finished with Halfords car spray paint.
Then overcoat the transfers with Humbrol Clear Coat. It's not going to attack either the transfer or the paint. You can apply it with a brush and it won't leave brush marks. BTW they also do Satin Coat and Matt Coat.